you can take the o-rings to the hardware store or most NAPA auto part stores...they have a huge selection and a measuring cone to match them up. I always used dielectric grease (also sold at NAPA in small pouches or a tube like toothpaste)...lube 'em up before install.
Eddie is on facebook "Eddie Spinks" and you might seek him out that way...if he's got any, he'll surely deplete his inventory as he has washed his hands with the business thanks to all the credit card laws and fraud he fell victim to.
just goes to show...a few bad apples can ruin it for people like us....a great business has gone away thanks to a few rotten apples.